WO2013180496A2 - 실시간 해양 구조물에 대한 기체역학적, 유체역학적 환경 내외력, 선체 응력, 6자유도 운동 및 위치를 예측 모니터링 및 예측 제어함을 통한 연료절감, 안전운용 및 유지보수정보 제공 시스템 및 방법 - Google Patents

실시간 해양 구조물에 대한 기체역학적, 유체역학적 환경 내외력, 선체 응력, 6자유도 운동 및 위치를 예측 모니터링 및 예측 제어함을 통한 연료절감, 안전운용 및 유지보수정보 제공 시스템 및 방법 Download PDF

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Publication number
WO2013180496A2
WO2013180496A2 PCT/KR2013/004777 KR2013004777W WO2013180496A2 WO 2013180496 A2 WO2013180496 A2 WO 2013180496A2 KR 2013004777 W KR2013004777 W KR 2013004777W WO 2013180496 A2 WO2013180496 A2 WO 2013180496A2
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WO
WIPO (PCT)
Prior art keywords
data
monitoring
offshore
predictive
marine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/004777
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English (en)
French (fr)
Korean (ko)
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WO2013180496A3 (ko
Inventor
명섭 리마이클
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CYTRONIQ Co Ltd
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CYTRONIQ Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020120149411A external-priority patent/KR20130135721A/ko
Priority claimed from KR1020120149412A external-priority patent/KR20130135024A/ko
Priority to EP20176395.0A priority Critical patent/EP3722744A1/en
Priority to EP13796337.7A priority patent/EP2860489A4/en
Application filed by CYTRONIQ Co Ltd filed Critical CYTRONIQ Co Ltd
Priority to AU2013268170A priority patent/AU2013268170B2/en
Priority to CN201380040663.XA priority patent/CN104508422B/zh
Priority claimed from KR1020130061477A external-priority patent/KR101472827B1/ko
Priority claimed from KR1020130061759A external-priority patent/KR101529378B1/ko
Priority to EP23156944.3A priority patent/EP4239283A3/en
Priority to JP2015514905A priority patent/JP6223436B2/ja
Publication of WO2013180496A2 publication Critical patent/WO2013180496A2/ko
Publication of WO2013180496A3 publication Critical patent/WO2013180496A3/ko
Priority to US14/555,928 priority patent/US9580150B2/en
Anticipated expiration legal-status Critical
Priority to US15/407,849 priority patent/US11034418B2/en
Priority to AU2017279830A priority patent/AU2017279830B2/en
Priority to AU2020204051A priority patent/AU2020204051B2/en
Priority to US17/315,289 priority patent/US11976917B2/en
Priority to AU2022241564A priority patent/AU2022241564B2/en
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B49/00—Arrangements of nautical instruments or navigational aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • B63B71/10—Designing vessels; Predicting their performance using computer simulation, e.g. finite element method [FEM] or computational fluid dynamics [CFD]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • B63B71/20—Designing vessels; Predicting their performance using towing tanks or model basins for designing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B79/00—Monitoring properties or operating parameters of vessels in operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B79/00—Monitoring properties or operating parameters of vessels in operation
    • B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B79/00—Monitoring properties or operating parameters of vessels in operation
    • B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
    • B63B79/15—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers for monitoring environmental variables, e.g. wave height or weather data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B79/00—Monitoring properties or operating parameters of vessels in operation
    • B63B79/30—Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B79/00—Monitoring properties or operating parameters of vessels in operation
    • B63B79/40—Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028—Force sensors associated with force applying means
    • G01L5/0038—Force sensors associated with force applying means applying a pushing force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/167—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using piezoelectric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • G01S13/865—Combination of radar systems with lidar systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/937—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of marine craft
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
    • G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
    • G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
    • G01S13/956—Radar or analogous systems specially adapted for specific applications for meteorological use mounted on ship or other platform
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Definitions

  • the present invention relates to a system and method for monitoring a physical change of a marine structure in real time by a composite photometer by introducing an optical sensor method. More specifically, the present invention relates to a system and method for monitoring the physical change of the marine structure in real time by the composite optical measuring device by introducing an optical sensor method.
  • the present invention relates to predictive monitoring and predictive control of aerodynamic and hydrodynamic environmental forces, hull stress, six degree of freedom motion, and position of a marine structure in real time, and more specifically, by aerodynamic and hydrodynamic environmental forces.
  • the present invention relates to a method of controlling a target structure (eg associated with marine / land, shipbuilding, aviation / space, submersible mooring, stationary or wind / tidal / wave power, etc.) through integrated monitoring of environmental external forces.
  • a target structure eg associated with marine / land, shipbuilding, aviation / space, submersible mooring, stationary or wind / tidal / wave power, etc.
  • Crude oil produced from offshore oil wells is transported to offshore structures using pipelines, a type of offshore structure.
  • the offshore structure includes Floating Production Storage and Offloading (FLO), TLP (Tension-Leg Platform), SPAR, Semi-Submersible, and Fixed Platform.
  • FLO Floating Production Storage and Offloading
  • TLP Transmission-Leg Platform
  • SPAR Semi-Submersible
  • Fixed Platform Fixed Platform
  • Pipelines are then installed in the deep sea for as little as twenty years, ranging from a few kilometers to as many as hundreds of kilometers.
  • the pipeline installed in the deep sea is largely contracted or expanded due to a temperature deviation of 100 degrees or more, and a physical change including a length change occurs according to a pressure change in the pipeline.
  • the pipeline installed in the offshore is concentrated in the stress at a specific or unspecified number of points, causing buckling and deformation.
  • the fluctuation of the pipeline is caused by a number of environmental external forces such as currents, waves, tides, wind, and temperature. cause.
  • monitoring methods are currently used to measure such fluctuations.
  • Conventional monitoring method is to measure the strain of the pipeline itself, an electrical or optical strain sensor is used. Since offshore structures are mainly the weakest part of the welded area, sensors are installed and operated at intervals of 20 to 50 cm. Here, the sensor is installed in the longitudinal direction of the pipeline to analyze the deformation.
  • Another monitoring method is to use an electronic inclinometer to detect the deformation of the pipeline.
  • the existing monitoring method since the strain generated by the temperature and pressure of the marine structure is much larger than the strain caused by the buckling and walking phenomenon, it was difficult to accurately analyze the phenomenon.
  • the electric inclinometer is currently installed in the ocean, and the demand for a new measuring method that is easy to use due to the complexity of the power supply and the connection method due to the loss due to high water pressure and the installation is increasing.
  • the sensor used in the existing monitoring method is a situation that requires a sensor that can be used for a longer period of time because the fatigue life resistance is short.
  • CO2 emissions are widely known as key factors for global warming, climate change and ocean acidification.
  • the amount of CO2 emitted to transport one ton of cargo a mile is the most overwhelming means of transportation in the world trade, even though marine structures are the most efficient means of transportation, so CO2 emissions represent about three of the total greenhouse gas emissions emitted by industry. Corresponds to%. Therefore, by increasing the fuel efficiency of offshore structures, the emission of greenhouse gases emitted by the industry can be greatly reduced.
  • the present invention has been proposed to solve the above problems, and provides a fuel-saving method through the monitoring and control of aerodynamic and hydrodynamic environmental forces, hull stress, six degree of freedom motion and position of the offshore structure in real time. It aims to do it.
  • an object of the present invention is to provide a monitoring system and method that can measure changes in offshore structures for a longer period of time than conventional electric sensors, and is easy to install and operate through an optical sensor type fusion measurement.
  • the object of the present invention is to provide an environment in which the monitoring information is shared with other external devices to improve the accuracy of weather information and to calibrate data measured by satellites.
  • the present invention has been proposed to solve the above problems, and provides a fuel-saving method through the monitoring and control of aerodynamic and hydrodynamic environmental forces, hull stress, six degree of freedom motion and position of the offshore structure in real time. It aims to do it.
  • the object of the present invention is to provide an environment in which the monitoring information is shared with other external devices to improve the accuracy of weather information and to calibrate data measured by satellites.
  • a system for monitoring the physical change of the marine structure of the present invention for achieving the above object, by using at least one optical sensor using an optical fiber Bragg grating, composite optical measurement for detecting the behavior and structural changes of the marine structure
  • a system is provided for monitoring physical changes in offshore structures, including appliances.
  • the composite optical measuring device includes an extensometer for measuring a distance change between the at least one reference point set outside the marine structure and the point set on the marine structure using the optical sensor, the optical sensor, The wavelength of the optical signal passing through the optical sensor is changed in response to the change in stress applied to the optical fiber due to the distance change.
  • the extensometer includes at least one wire that connects between the reference point and a point set on the marine structure.
  • the wire may include an invar.
  • the extensometer may further include a winding unit winding the wire with a predetermined tension and a sensing unit measuring the rotation speed of the winding unit using an optical sensor.
  • the extensometer may further include a stimulation unit for stimulating the optical sensor periodically corresponding to the number of revolutions measured from the detection unit.
  • the composite optical measuring device is provided with an optical fiber wire 320 to interconnect at least one or more points on the offshore structure is an extensometer for measuring the change in length of the offshore structure Include.
  • the optical fiber wire 320 changes the wavelength of the optical signal passing through the optical fiber in response to the stress change applied to the optical sensor due to the distance change on the marine structure.
  • the extensometer is installed at least one or more at the same point on the structure, and comprises a wire made of an optical fiber, the wire, the change in distance on the marine structure Therefore, the wavelength of the optical signal passing through the optical fiber is changed in response to the stress change applied to the optical fiber.
  • the extensometer provides absolute position information of the point by converting the degree of tension of each wire using the triangulation method.
  • the composite optical measuring device includes an inclinometer for measuring a change in the inclination between a plurality of points on the marine structure using the optical sensor.
  • the inclinometer includes a weight installed in the direction of gravity, the optical sensor made of at least one optical fiber connected to the weight, due to the change in the inclination of the point on the offshore structure in which the inclinometer is installed, by the weight The wavelength of the optical signal passing through the optical fiber is changed in response to the stress change applied to the optical fiber.
  • the composite photometer may further include an earthquake meter for measuring a change in position of the reference point.
  • the composite optical measuring device may further include a vibration meter for measuring the vibration of the marine structure.
  • it may further include a measuring device for detecting a change in the wavelength of the optical signal from the composite photometer.
  • a measuring device for detecting a change in the wavelength of the optical signal from the composite photometer.
  • a data logger or an interrogator can be used as the measuring device.
  • the composite optical measuring device includes an optical time-domain reflectometer (OTDR), a Raman spectrum method (Raman), a Brillouin scattering, a Rayleigh wave, a DAS ( At least one of Distributed Acoustic Sensing, Acoustic Emission, and Interferometry is used to detect a change in the target structure.
  • OTDR optical time-domain reflectometer
  • Raman Raman spectrum method
  • Brillouin scattering a Brillouin scattering
  • Rayleigh wave a Rayleigh wave
  • DAS At least one of Distributed Acoustic Sensing, Acoustic Emission, and Interferometry is used to detect a change in the target structure.
  • the measuring device an optical unit having a laser capable of controlling the wavelength, an optical reference for distinguishing the wavelength of the optical signal reflected by the optical unit for each optical sensor, An optical coupler connecting a plurality of optical fiber Bragg gratings of each optical sensor output from the optical reference and distributing Bragg reflection wavelengths for each channel; And a photo diode converting the Bragg reflection wavelength received from the optical coupler into an electrical signal.
  • the measuring device also has a function of collecting the scattered optical signals.
  • the behavior of the marine structure using at least one or more complex optical measuring instruments installed on and / or a reference point (A) changing the wavelength and / or light quantity of the optical signal passing through the optical sensor according to the structural change, wherein the composite optical measuring device transmits the optical signal having the changed wavelength and / or light quantity to the measuring device; and (c) detecting the wavelength and / or light quantity change of the optical signal by the measuring device, wherein the composite optical measuring device includes at least one optical sensor using an optical fiber Bragg grating.
  • the composite photometer may include an extensometer for measuring a change in distance between at least one reference point set outside the marine structure and the set position of the marine structure.
  • the extensometer is at least one wire connecting between the reference point and the point set on the marine structure, a winding unit for winding the wire with a constant tension, using the optical fiber And a sensing unit for measuring the rotational speed of the winding unit and a magnetic pole unit for stimulating the optical fiber periodically in accordance with the rotational speed measured from the sensing unit.
  • the extensometer is provided with optical fiber wires interconnecting at least one or more points on the marine structure to measure the change in length of the marine structure, the optical fiber wire, the The wavelength of the optical signal passing through the optical fiber is changed in response to the change in stress due to the change in distance on the offshore structure.
  • the extensometer is connected to at least one or more at the same point on the structure, and comprises a wire made of an optical fiber, the wire, as the distance change on the marine structure Therefore, the wavelength of the optical signal passing through the optical fiber is changed in response to the stress change applied to the optical fiber.
  • the extensometer provides absolute position information of the point by converting the degree of tension of each wire using the triangulation method.
  • the composite optical measuring device includes an inclinometer for measuring a change in the inclination between a plurality of points on the marine structure using the optical sensor.
  • the inclinometer includes a weight installed in the direction of gravity and the optical fiber connected to the weight, wherein the step (a), the weight is stimulated by the weight in accordance with the change in the slope generated in the offshore structure to generate a stress change In turn, the generated stress change is converted into an optical signal.
  • the composite optical measuring device further comprises a seismometer for measuring the position change of at least one reference point set outside the marine structure using the optical sensor.
  • the composite optical measuring device further comprises a vibrometer for measuring the vibration of the marine structure
  • the measuring device may use a data logger or an interrogator.
  • the measuring device an optical unit having a laser capable of controlling the wavelength, an optical reference for distinguishing the wavelength of the optical signal reflected by the optical unit for each optical sensor, An optical coupler connecting a plurality of optical fiber Bragg gratings of each optical sensor output from the optical reference and distributing Bragg reflection wavelengths for each channel; And a photo diode converting the Bragg reflection wavelength received from the optical coupler into an electrical signal.
  • the control method through the real-time physical change monitoring of the marine structure of the present invention for achieving the above object, to obtain the data on the physical change of the marine structure by the experiment in the water tank or wind tunnel, and the obtained data (A) generating a lookup table by accumulating, acquiring data on the actual physical change of the marine structure output from the measuring device, and (b) and storing the data obtained in (b). (c) generating predictive data on physical changes of the offshore structure by comparing the data accumulated in the lookup table of step a), and controlling the structure by a three-dimensional numerical analysis program that receives the predicted data.
  • Maintenance including at least one of operation information, location information requiring maintenance, maintenance cost information, maintenance time required (D) generating information and warning information about a gas leak, fire, or explosion in the offshore structure, wherein the physical change includes a change in length, inclination, and temperature for at least one point on the offshore structure. , At least one of pressure change and specific volume change.
  • the step (c) of comparing the prediction data with the data on the actual physical change of the marine structure and modifying the lookup table is further performed. Include.
  • the marine structure control information is generated as a simulator by a FSI program (Fluid Structure Interaction), and the simulator by the situation recognition middleware (The method may further include generating an algorithm for automatically controlling the offshore structure by interlocking with data on the actual physical change amount of the offshore structure obtained in step b) in real time.
  • FSI program Fluid Structure Interaction
  • the method may further include generating an algorithm for automatically controlling the offshore structure by interlocking with data on the actual physical change amount of the offshore structure obtained in step b) in real time.
  • the three-dimensional numerical analysis program of step (d) may use finite element analysis (FEM) and computational fluid dynamics (CFD).
  • FEM finite element analysis
  • CFD computational fluid dynamics
  • the step (d), the three-dimensional numerical analysis program, the gas leakage / diffusion, fire that can occur according to the behavior and structural changes of the marine structure may be generated by interlocking with a situation analysis module in which data about virtual situations such as blasting and corresponding measures according to the virtual situations are stored.
  • the structure automatic control unit further comprises the step (e) of controlling by changing the position or angle of the offshore structure according to the control operation information, the control unit, the offshore structure It may include a coupling means connected to at least one point of the image and displacement control means connected to the coupling means to move the marine structure up, down, left and right.
  • the warning information is generated using the data on the actual physical change of the marine structure measured by the measuring device using at least one of TDLAS, DTS, DAS, FBG or RMLD.
  • Step 3 the attitude or navigational view of the offshore structure using data on the predicted response of the offshore structure
  • a fuel saving and safe operation method is provided through predictive monitoring and predictive control of aerodynamic forces, hull stress, six degree of freedom motion and position of aerodynamic environment for a real time offshore structure including a fourth step of controlling the engine in real time.
  • step 3-2 is further modified to correct the data on the response of the marine structure in the lookup table generated in the first step by the data on the response of the marine structure in step 3-1. It may include.
  • the modification of the data on the response of the marine structure can be made by a finite element method (FEA) based simulator.
  • FEA finite element method
  • the second step while measuring the internal and external force by the gas through a measuring device provided in the marine bracket, the measuring device may be made of an electrical sensor or an optical sensor.
  • the measuring device measures the wind direction, wind speed, air pressure, temperature, humidity and dust for each altitude.
  • the second step using the IMU actually measures the internal and external forces of the gas flow on the offshore structure.
  • reaction of the offshore structure in the second step when the offshore structure is a vessel may include at least one or more of the traveling direction, the front and rear, left and right tilt, draft or trim of the vessel.
  • reaction of the marine structure in the second step, when the marine structure is a temporary fixed structure may include at least one or more of the moving direction of the structure, front and rear tilt, draft.
  • the second step it is possible to measure the data including the natural frequency, harmonic frequency and gas characteristics of the offshore structure by the flow of gas.
  • the database in which the lookup table is stored in the first step may be a navigation recorder (VDR) provided in the marine structure.
  • VDR navigation recorder
  • the lookup table is recorded as hourly time series data, and compared with the time series data accumulated up to the previous year.
  • the lookup table can be modified by using.
  • the fourth step by using at least one of the rudder (ruster), thruster (thruster), propeller, sail, kite or balloon can control the attitude or the navigation path of the marine structure in real time.
  • the direction of the rudder may be a target propagation direction so that the force between the propulsion force and the internal and external forces may be a target traveling direction according to data about the predicted response of the marine structure. Can be controlled.
  • the thrust with the internal and external forces can be controlled to maintain the current position to the minimum.
  • the marine structure is provided with a helix (helideck), the fourth step, the posture of the marine structure through the dynamic positioning (DP) and dynamic motion (DM) to maintain the balance of the helix deck Control, and the equilibrium state information of the helidec can be stored in the database.
  • the equilibrium state information of the helidec according to controlling the attitude of the offshore structure is stored in the database, the database transmits the equilibrium state information of the helidec to an external rescue information server through a communication unit, the rescue The information server may provide the helicopter with the position information of the marine structure having the equilibrium state information of the helidec from which the helicopter can take off and land among the plurality of marine structures.
  • the second step at least one of wind direction, wind speed, air temperature, humidity, air pressure, solar radiation, inorganic ion, carbon dioxide, dust, radioactivity or ozone from the marine structure is measured by a measuring instrument and is measured in the database. Further comprising the step 2-1 of storing,
  • the measuring device is preferably at least one of anemometer, wind vane, hygrometer, thermometer, barometer, solar meter, atmospheric gassol automatic collector, CO2flux measuring equipment, atmospheric dust collector, air sampler or ozone analyzer.
  • the marine structure includes a ballast tank, and in order to reduce the sloshing phenomenon in the ballast tank, it may include a sloshing suppression portion provided on each side of the ballast tank.
  • the sloshing suppressing portion suppresses the sloshing phenomenon by narrowing the open area of the cross section in one horizontal cross section of the ballast tank.
  • the attitude of the marine structure may be controlled by moving the ballast water loaded in the ballast tank in the opposite direction to the inclined direction.
  • the ballast tank includes a partition wall dividing a partition inside the ballast tank, and the partition wall is provided with an opening and closing part for moving the ballast water to another partition, and inside the opening and closing part of the ballast tank. Pumps to control the speed and direction of movement can be installed.
  • the measurement data of the internal and external force in the second step is transmitted to an external weather information server, and the weather information server corrects the error by comparing and processing the weather information received from the satellite with the measurement data of the internal and external force.
  • One weather information correction data can be stored.
  • the weather information correction data may be provided to the external user terminal.
  • the present invention for achieving the above object, through the linear test in the water tank or wind tunnel data on the internal and external forces of the flow of the gas outside the marine structure on the marine structure and the The first step of accumulating data on the response of the offshore structure to generate a lookup table and storing the lookup table in a database, using the time-of-flight method in actual navigation of the offshore structure Predict the data on the response of the marine structure by comparing the measured data of the internal and external forces of the second and second stages by measuring the external force and storing them in the database with the data of the internal and external forces accumulated in the lookup table of the first stage.
  • the step 3-1 of measuring the response of the actual offshore structure, of the offshore structure measured in step 3-1 Compare the data on the response to the response of the offshore structure predicted in the third step, and if the difference occurs, the lookup table generated in the first step with the data on the response of the offshore structure in step 3-1. And a third step of modifying data on the response of the offshore structure in the second step and a fourth step of acquiring maintenance data on the offshore structure through virtual simulation of the data accumulated in the lookup table.
  • the data on the reaction of the marine structure may include at least one of strain, deformation, crack, vibration, frequency, corrosion, erosion.
  • the maintenance data of the fourth step may be obtained by being distinguished according to a predetermined importance of individual structures provided in the marine structure.
  • the maintenance data may include at least one of location information requiring maintenance, maintenance cost information, maintenance required time information, or remaining life information for each structure.
  • Step 3 the attitude or navigational view of the offshore structure using data on the predicted response of the offshore structure
  • a fuel saving and safe operation method is provided through predictive monitoring and predictive control of hydrodynamic environment, hull stress, six degree of freedom motion and operation position for a real-time offshore structure including a fourth step of controlling the engine in real time. do.
  • step 3-2 is further modified to correct the data on the response of the marine structure in the lookup table generated in the first step by the data on the response of the marine structure in step 3-1. It may include.
  • the modification of the data on the response of the offshore structure can be made by a finite element method (FEA) or an inverse finite element method (iFEM) based simulator.
  • FEA finite element method
  • iFEM inverse finite element method
  • the second step while measuring the internal and external force by the fluid through a measuring device provided on the side of the marine bracket, the measuring device may be made of an electrical sensor or an optical sensor.
  • the second step using the IMU actually measures the internal and external forces of the flow of the fluid to the marine structure.
  • reaction of the offshore structure in the second step when the offshore structure is a vessel may include at least one or more of the traveling direction, the front and rear, left and right tilt, draft or trim of the vessel.
  • reaction of the offshore structure in the second step, when the offshore structure is a temporary fixed structure may include at least one or more of the operation direction of the structure, front and rear tilt, draft.
  • the second step it is possible to measure the direction and speed according to the space and time of the tidal current and the current for each depth.
  • the second step it is possible to measure the data including the natural frequency, harmonic frequency and fluid characteristics of the offshore structure by the flow of the fluid.
  • the database in which the lookup table is stored in the first step may be a navigation recorder (VDR) provided in the marine structure.
  • VDR navigation recorder
  • the lookup table is recorded as hourly time series data, and compared with the time series data accumulated up to the previous year.
  • the lookup table can be modified by using.
  • the fourth step by using at least one of the rudder (ruster), thruster (thruster), propeller, sail, kite or balloon can control the attitude or the navigation path of the marine structure in real time.
  • the direction of the rudder may be a target propagation direction so that the combined force with the internal and external forces with the propulsion force may be a target direction according to the data on the predicted response of the marine structure And it can control the RPM of the thruster and the propeller.
  • the thrust with the internal and external forces can be controlled to maintain the current position to the minimum.
  • the marine structure is provided with a helix (helideck), the fourth step, the posture of the marine structure through the dynamic positioning (DP) and dynamic motion (DM) to maintain the balance of the helix deck Control, and the equilibrium state information of the helidec can be stored in the database.
  • the equilibrium state information of the helidec according to controlling the attitude of the offshore structure is stored in the database, the database transmits the equilibrium state information of the helidec to an external rescue information server through a communication unit, the rescue The information server may provide the helicopter with the position information of the marine structure having the equilibrium state information of the helidec from which the helicopter can take off and land among the plurality of marine structures.
  • the data on the internal and external forces of the fluid flow on the marine structure are measured by the pressure sensor installed on the side of the marine structure, and the data on the currents and tidal current vectors. Can be.
  • the pressure sensor may be provided in plurality, and may be installed at predetermined intervals on the side of the marine structure.
  • the pressure sensor may be provided in plurality, and may be installed to have a height difference on a side surface of the marine structure.
  • the pressure sensor may be provided in plurality, and may be installed to have a height difference on a side surface of the marine structure.
  • the three-dimensional pressure sensor module obtains the three-dimensional vector information of the current and current.
  • the second step is a step 2-1 for measuring at least one or more of the distance, the wave, the period of the wave, the speed of the wave or the direction of the wave from the marine structure by the meteorological measuring equipment and store in the database
  • the meteorological measuring device may be made of at least one of a wave radar, a directional waverider, a sea level monitor, an ultrasonic tide meter, a wind vane or an ultrasonic wave height meter.
  • the second step the radar (radar) to measure at least one or more of the distance, wave, wave period, wave speed or direction of the wave from the marine structure and stored in the database 2- It may further comprise a step.
  • the marine structure includes a ballast tank, and in order to reduce the sloshing phenomenon in the ballast tank, it may include a sloshing suppression portion provided on each side of the ballast tank.
  • the sloshing suppressing portion suppresses the sloshing phenomenon by narrowing the open area of the cross section in one horizontal cross section of the ballast tank.
  • the attitude of the marine structure may be controlled by moving the ballast water loaded in the ballast tank in the opposite direction to the inclined direction.
  • the ballast tank includes a partition wall dividing a partition inside the ballast tank, and the partition wall is provided with an opening and closing part for moving the ballast water to another partition, and inside the opening and closing part of the ballast tank. Pumps to control the speed and direction of movement can be installed.
  • the measurement data of the internal and external force in the second step is transmitted to an external weather information server, and the weather information server corrects the error by comparing and processing the weather information received from the satellite with the measurement data of the internal and external force.
  • One weather information correction data can be stored.
  • the weather information correction data may be provided to the external user terminal.
  • the data according to the internal and external forces and the internal and external forces of the flow of the fluid outside the marine structure through the linear test in the water tank or wind tunnel on the marine structure The first step of accumulating data on the response of the offshore structure to generate a lookup table and storing the lookup table in a database, using the time-of-flight method in actual navigation of the offshore structure Predict the data on the response of the marine structure by comparing the measured data of the internal and external forces of the second and second stages by measuring the external force and storing them in the database with the data of the internal and external forces accumulated in the lookup table of the first stage.
  • the step 3-1 of measuring the response of the actual offshore structure, of the offshore structure measured in step 3-1 Compare the data on the response to the response of the offshore structure predicted in the third step, and if the difference occurs, the lookup table generated in the first step with the data on the response of the offshore structure in step 3-1. And a third step of modifying data on the response of the offshore structure in the second step and a fourth step of acquiring maintenance data on the offshore structure through virtual simulation of the data accumulated in the lookup table.
  • the data on the reaction of the marine structure may include at least one of strain, deformation, crack, vibration, frequency, corrosion, erosion.
  • the maintenance data of the fourth step may be obtained by being distinguished according to a predetermined importance of individual structures provided in the marine structure.
  • the maintenance data may include at least one of location information requiring maintenance, maintenance cost information, maintenance required time information, or remaining life information for each structure.
  • the present invention it is possible to detect and prevent the environmental pollution, such as oil leakage from the offshore structure in advance through real-time monitoring of the offshore structure.
  • the real-time monitoring and control of the aerodynamic, hydrodynamic, internal and external forces, hull stresses, six degree of freedom movement and position of the offshore structure towards or pending can effectively reduce the fuel consumed when sailing or mooring offshore structures. Can be.
  • the information monitored by the marine structure can be shared with others to increase the accuracy of the weather information, and can provide an environment that can be used as a ground true station for calibrating data measured by satellites.
  • the weather information received from the satellite can be compared with the measured data of the internal and external forces to reduce the error to provide a basic data for forecasting can contribute to the fisheries industry.
  • the life of the offshore structure is extended for a long time by providing information on related maintenance. Do it.
  • 1 is a view showing a method of measuring the change in distance between the reference point and the point set on the offshore structure using an extensometer connected to the pipeline of the seabed according to an embodiment of the present invention.
  • FIG. 2 is a view showing the structure of an extensometer according to another embodiment of the present invention.
  • FIG 3 is a view showing an extensometer for measuring a change in length of the offshore structure is provided with an optical fiber wire interconnecting at least two or more points on the offshore structure according to another embodiment of the present invention.
  • FIG. 4 is a view illustrating a method of measuring a change in length of the marine structure by using an extensometer triangulation according to another embodiment of the present invention.
  • FIG. 5 is a view showing that the automatic structure control unit according to another embodiment of the present invention changes the position or angle of the marine structure according to the control operation information.
  • FIG. 6 is a flow chart of a fuel saving and safe operation method through monitoring and controlling an offshore structure for internal and external forces of aerodynamic and hydrodynamic environments for an offshore structure.
  • FIG. 7 is a diagram illustrating a gas dynamic vector applied to an offshore structure.
  • FIG. 8 shows a measurement of a gas dynamic vector applied to an offshore structure in accordance with an embodiment of the present invention.
  • FIG. 9 is a view showing a fuel saving and safe operation method by controlling the rudder when the internal and external force is applied by the gas dynamics according to an embodiment of the present invention.
  • FIGS. 10 and 11 are cross-sectional views of a ballast tank according to still another embodiment of the present invention, a partition wall provided in the ballast tank, and a view showing the structure of the partition wall.
  • FIG. 12 is a diagram illustrating maintenance data for an offshore structure through simulation according to another embodiment of the present invention.
  • FIG. 13 shows a marine structure (particularly a ship) and a helideck installed in the marine structure.
  • FIG. 14 is a view showing a state in which a pressure sensor is installed in the offshore structure according to an embodiment of the present invention.
  • optical sensor 310 wire
  • ballast tank 510 sloshing suppression
  • offshore structure means, for example, jack up leagues, semi-sub leagues, jackets, compliant towers, TLPs, floating oil production, storage, extraction facilities, wind turbines, wave generators, and the like.
  • directly or indirectly linked composite structures e.g. non-subsea structure / flare towers, top-side, berthing offshore structures, drill rigs, production casings for oil and gas extraction from oil fields, risers and flowlines).
  • Mathematical models include computational fluid dynamics, finite element method (FEM), fluid structural interaction, finite difference method, finite volume method, or inverse finite element method (iFEM).
  • FEM finite element method
  • iFEM inverse finite element method
  • DMS Dynamic Motion System
  • DPS Dynamic Positioning System
  • EEOI Energy Efficiency Operational Indicator
  • EEDI Energy Efficiency Design Index
  • DP or DM Boundary among the main / composite structures, reflects the priority of the target structures to minimize the fatigue or stabilize the helicopter take-off, landing, liquefaction and liquefaction through DMS.
  • priority of fatigue minimization is determined by reflecting the priority of the target structures among the main / composite structures, and operation or quantitative EEDI is applied to maximize the control efficiency of DPS, DMS or EEOI /. Measure it.
  • diagonostics e.g. fatigue of offshore structures and periodicity of upper bounds, deformation / displacement or positional changes, tensile and cumulative fatigue generated from the structure posture
  • Prognostic interpretation based on cumulative results.
  • the optical sensor is a term used to mean a sensor for estimating the measured amount using a change in the intensity of light passing through the optical fiber, the refractive index and the length of the optical fiber, the mode, and the polarization state.
  • the measurement amount of the optical sensor is various, such as temperature, pressure, strain, rotation rate, and does not use electricity in the sensor, there is almost no restriction on the use environment due to the excellent corrosion resistance of the silica material.
  • the optical Bragg grating used herein is a term meaning a constant refractive index change pattern generated by changing the optical refractive index depending on the degree of exposure of the optical fiber when exposed to ultraviolet light for a certain time.
  • the optical Bragg grating since the optical Bragg grating has a characteristic of selectively reflecting or removing light having a specific wavelength according to the period of change of the refractive index, the optical Bragg grating can be used for an optical communication filter, an optical dispersion compensator, and an optical fiber laser.
  • it is widely applied as an optical sensor by using a change in light selectivity due to external tensile force or temperature change.
  • extensometer as used herein generally refers to a device for precisely measuring the change in length, that is, the elongation at the gage distance
  • inclinometer generally refers to an angle occurring at a measurement object.
  • a device that measures change
  • the numerical analysis used in the present specification refers to a model of a structure or a real model using a computer program, and inputs various variables such as stress applied to the actual data, such as displacement and stress state. It is the analysis method that numerically identifies the deformation behavior of the applied model using the output data as the output data, and it is computational fluid dynamics, finite element analysis (FEM), fluid-structure interlocking analysis (FSI), finite difference method (FDM), finite volume
  • FEM finite element analysis
  • FMI fluid-structure interlocking analysis
  • FDM finite difference method
  • the finite element analysis method used in the present specification
  • the finite element analysis method is a structure that is a continuum, a one-dimensional rod, a two-dimensional triangle or square, a solid three-dimensional solid (tetrahedron, tetrahedron)
  • the term refers to a numerical calculation method that divides into finite elements of and calculates them based on an approximate solution based on the principle of energy for each domain.
  • computational fluid dynamics is a term that means to calculate the dynamic movement of the fluid or gas in a numerical method using a computer.
  • the present invention is a system and method for measuring buckling and walking of an offshore structure using optical fibers and thus monitoring physical changes in the offshore structure, the distance from a reference point at each set location on the offshore structure.
  • An extensometer for measuring change, an inclinometer for measuring the direction of change installed at each set position on the marine structure, or a combined optical measuring device including a seismometer for detecting a change in the reference point I use it.
  • it may include a thermometer, a flow meter, a pressure gauge.
  • a system for monitoring the physical change of the offshore structure including a composite photometer for detecting the behavior and structural changes of the offshore structure.
  • the composite optical measuring device includes an extensometer for measuring a distance change between the at least one reference point set outside the marine structure and the point set on the marine structure using the optical sensor, the optical sensor, The wavelength of the optical signal passing through the optical sensor is changed in response to the change in stress applied to the optical fiber due to the distance change.
  • the extensometer includes at least one wire connecting the reference point and a point set on the marine structure.
  • the wire may be made of a tape measure made of Invar, which is an alloy having a small coefficient of thermal expansion by adding 36.5% of nickel to 63.5% of iron. Invar wire is used for high precision distance measurement without being affected by external temperature changes.
  • the extensometer may further include a winding unit winding the wire with a predetermined tension and a sensing unit measuring the rotation speed of the winding unit using an optical sensor.
  • the extensometer may further include a stimulation unit for stimulating the optical sensor periodically corresponding to the number of revolutions measured from the detection unit.
  • the composite photometer is provided with an optical fiber wire interconnecting at least one or more points on the marine structure to measure the change in length of the marine structure It includes an extensometer.
  • the optical fiber wire changes the wavelength of the optical signal passing through the optical fiber in response to the stress change applied to the optical sensor due to the distance change on the marine structure.
  • At least one extensometer is installed at the same point on the structure, and comprises a wire made of an optical fiber, the wire, The wavelength of the optical signal passing through the optical fiber is changed in response to the change in stress applied to the optical fiber due to the change in distance on the marine structure.
  • the extensometer provides absolute position information of the point by converting the degree of tension of each wire using the triangulation method.
  • Triangulation is a method of determining the coordinates and distances of a point using the properties of a triangle. Given that point and two reference points, measure the angle between the base and the two sides of the triangle between the point and the two reference points, measure the length of the side, and perform a series of calculations using the law of sine. , How to find the coordinates and distance to that point.
  • the composite optical measuring device includes an inclinometer for measuring the change in the inclination between a plurality of points on the marine structure using the optical sensor.
  • the inclinometer includes a weight installed in the direction of gravity, an optical sensor made of at least one optical fiber connected to the weight, due to the change in the inclination of the point on the offshore structure in which the inclinometer is installed, by the weight The wavelength of the optical signal passing through the optical fiber is changed in response to the stress change applied to the optical fiber.
  • the composite photometer may further include an earthquake meter for measuring a change in position of the reference point.
  • the composite optical measuring device may further include a vibration meter for measuring the vibration of the marine structure.
  • it may further include a measuring device for detecting a change in the wavelength of the optical signal from the composite photometer.
  • a measuring device for detecting a change in the wavelength of the optical signal from the composite photometer.
  • a data logger or an interrogator can be used as the measuring device.
  • the composite optical measuring device includes an optical time-domain reflectometer (OTDR), a Raman spectrum method (Raman), a Brillouin scattering, a Rayleigh wave, a DAS ( At least one of Distributed Acoustic Sensing, Acoustic Emission, and Interferometry is used to detect a change in the target structure.
  • OTDR optical time-domain reflectometer
  • Raman Raman spectrum method
  • Brillouin scattering a Brillouin scattering
  • Rayleigh wave a Rayleigh wave
  • DAS At least one of Distributed Acoustic Sensing, Acoustic Emission, and Interferometry is used to detect a change in the target structure.
  • the measuring device an optical unit having a laser capable of controlling the wavelength, an optical reference for distinguishing the wavelength of the optical signal reflected by the optical unit for each optical sensor, An optical coupler for connecting a plurality of optical fiber Bragg gratings of each optical sensor output from the optical reference, an optical coupler for distributing Bragg reflection wavelengths for each channel, and a photo for converting Bragg reflection wavelengths received from the optical coupler into electrical signals. It may be configured to include a diode (photo diode). In addition, the measuring device may have a function of collecting scattered light signals.
  • the extensometer measures the length of the offshore structure by detecting the change in length between the set positions of the offshore structure, and the inclinometer measures the angle change by detecting the direction of the offshore structure.
  • the measured result is communicated with the measuring device using at least one of electric, electronic, sonar or optical methods of wired or wireless methods.
  • a plurality of extensometers and inclinometers are configured to monitor the physical change of the marine structure.
  • the extensometer is installed at intervals of 90 degrees, and the physical change of the offshore structure is monitored by measuring the slope change using the inclinometer.
  • the reference point may further include a seismometer for measuring the movement of the ground, and consists of an optical measuring device that receives the optical signal from the inclinometer and extensometer.
  • the output from the measuring device is transmitted using at least one of electric, electronic, sonar or optical, wired or wireless, so that it can be checked at sea and remotely.
  • a plurality of the extensometers or inclinometers may be used.
  • the reference point may be installed to further include a seismometer for measuring the movement of the ground, it is composed of an optical measuring device for receiving an optical signal from the inclinometer and the extensometer.
  • the output from the measuring device is transmitted using at least one of electric, electronic, sonar or optical, wired or wireless, so that it can be checked at sea and remotely.
  • a plurality of the extensometers or inclinometers may be used.
  • the method for monitoring the physical change of the marine structure by using at least one or more composite optical measuring instruments installed on and / or a reference point of the marine structure, according to the behavior or structural change of the marine structure (A) changing the wavelength and / or light quantity of the optical signal passing through the optical sensor, and (b) transmitting the optical signal having the wavelength and / or light quantity changed to the measuring device by the composite photometer. And (c) detecting a change in wavelength and / or light quantity of the optical signal by a measuring device, wherein the composite optical measuring device includes at least one optical sensor using an optical fiber Bragg grating.
  • another embodiment of the present invention provides a composite optical measuring device that uses an extensometer for measuring a change in distance between at least one reference point set outside the marine structure and a set position of the marine structure. Can be done.
  • the extensometer is at least one or more wires connecting between the reference point and the point set on the marine structure, the winding unit for winding the wire with a constant tension
  • the sensor includes a sensing unit for measuring the rotational speed of the winding unit using an optical fiber, and a stimulation unit periodically stimulating the optical fiber corresponding to the rotational speed measured from the sensing unit.
  • the extensometer is provided with an optical fiber wire 320 to interconnect at least one or more points on the offshore structure to change the length of the offshore structure
  • the optical fiber wire 320 changes the wavelength of an optical signal passing through the optical fiber in response to a change in stress due to a change in distance on the marine structure.
  • the extensometer is connected to at least one or more at the same point on the structure, and comprises a wire made of an optical fiber, the wire, The wavelength of the optical signal passing through the optical fiber is changed in response to the change in stress applied to the optical fiber due to the change in distance on the marine structure.
  • the extensometer provides absolute position information of the point by converting the degree of tension of each wire using the triangulation method.
  • the composite optical measuring device includes an inclinometer for measuring the change in the inclination between a plurality of points on the marine structure using the optical sensor.
  • the inclinometer includes a weight installed in the direction of gravity and the optical fiber connected to the weight, the step (a), the weight is stimulated by the weight in accordance with the change in the slope generated in the offshore structure to generate a stress change In turn, the generated stress change is converted into an optical signal.
  • the composite optical measuring device further comprises a seismometer for measuring the position change of at least one reference point set outside the marine structure using the optical sensor.
  • the composite optical measuring device further comprises a vibrometer for measuring the vibration of the marine structure
  • the measuring device may use a data logger or an interrogator.
  • the measuring device an optical unit having a laser capable of controlling the wavelength, an optical reference for distinguishing the wavelength of the optical signal reflected by the optical unit for each optical sensor, An optical coupler for connecting a plurality of optical fiber Bragg gratings of each optical sensor output from the optical reference, an optical coupler for distributing Bragg reflection wavelengths for each channel, and a photo for converting Bragg reflection wavelengths received from the optical coupler into electrical signals. It may be configured to include a diode (photo diode).
  • Maintenance management including at least one of information, location information requiring maintenance, maintenance cost information, maintenance time required (D) generating warning information for gas leaks, fires or explosions in beams and offshore structures, wherein the physical changes include length changes, gradient changes, and temperature changes for at least one point on the offshore structure. , At least one of pressure change and specific volume change.
  • the step (c) of comparing the prediction data with the data on the actual physical change of the marine structure and modifying the lookup table is further performed. Include.
  • the marine structure control information is generated as a simulator by a FSI program (Fluid Structure Interaction), and the simulator by the situation recognition middleware (The method may further include generating an algorithm for automatically controlling the offshore structure by interlocking with data on the actual physical change amount of the offshore structure obtained in step b) in real time.
  • FSI program Fluid Structure Interaction
  • the method may further include generating an algorithm for automatically controlling the offshore structure by interlocking with data on the actual physical change amount of the offshore structure obtained in step b) in real time.
  • the three-dimensional numerical analysis program may use finite element analysis (FEM) and computational fluid dynamics (CFD).
  • FEM finite element analysis
  • CFD computational fluid dynamics
  • the step (d), the three-dimensional numerical analysis program, the gas leakage / diffusion, fire that can occur according to the behavior and structural changes of the marine structure may be generated by interlocking with a situation analysis module in which data about virtual situations such as blasting and corresponding measures according to the virtual situations are stored.
  • the method may further include (e) controlling, by the structure automatic control unit, by changing the position or angle of the marine structure according to the control operation information.
  • the control unit may include a coupling means connected to at least one point on the marine structure and displacement control means connected to the coupling means to move the marine structure up, down, left and right.
  • the structure automatic control unit can be adjusted to minimize the behavior and structural changes of the offshore structure.
  • the warning information, the measuring device is TDLAS (Tunable Diode Laser Absorption Spectroscopy), Distributed Temperature Sensing (DTS), Distributed Acoustic Sensing (DAS), Fiber Bragg Grating (FBG) Or it is generated using the data on the actual physical change of the marine structure measured using at least one of RMLD (Remote Methane Leak Detector).
  • TDLAS Tunable Diode Laser Absorption Spectroscopy
  • DTS Distributed Temperature Sensing
  • DAS Distributed Acoustic Sensing
  • FBG Fiber Bragg Grating
  • offshore structure means, for example, jack up leagues, semi-sub leagues, jackets, compliant towers, TLPs, floating oil production, storage, extraction facilities, wind turbines, wave generators, and the like.
  • directly or indirectly linked composite structures e.g. non-subsea structure / flare towers, top-side, berthing offshore structures, drill rigs, production casings for oil and gas extraction from oil fields, risers and flowlines).
  • Production line Production line, mooring line, hawser line, lowering line, Tethering cable line for ROV, structural support and connection cable for eco-friendly fuel saving do / sail, tentioner with fiber optic sensor, blade and tower of wind power generator, jacket, foundation
  • structures such as tensioners for overloading, cables for bridges / bridges, supports / supports for offshore, underwater or undersea structures, and concrete tensioners for such structures. Put it on.
  • the propeller when the ballast tank is operated in the empty ship without loading cargo on the ship, the propeller floats on the water surface, so that the efficiency may be seriously damaged or serious damage may occur. This prevents the ship from maintaining a constant draft, and is intended to prevent loss of stability when cargo is loaded unbalanced on board.
  • a water ballast is used to fill seawater in a ballast tank, but when this is not enough, a solid ballast is used to load sand.
  • the measuring device for measuring the external force for example, wind load, wave load, current load
  • the response of the structure for example, Displacement, Deformation, Motion, Vortex
  • an electrical or optical measurement method particle induced velocity (piv), particle tracking velocity (ptv), strain sensor, extensometer, accelerometer, inclinometer, pressure, flow meter, thermometer, ammeter, acoustic emission test, earthquake sensor, flow velocity, distribution temperature sensor, distribution strain sensor, It is known in advance that it is a broad term encompassing a distance split optical loss meter (OTDR).
  • OTDR distance split optical loss meter
  • the measuring device for measuring the internal load eg, sloshing load, flow load, pressure load, thermal load
  • the response of the structure eg, displacement, deformation, motion, walking, buckling, vortex
  • lidar particle induced velocity (piv), particle tracking velocity (ptv), strain sensor, accelerometer, ammeter, acoustic emission test, seismic sensor, flow velocity, distribution temperature sensor, distribution strain sensor, distance division light It is known in advance that it is a broad term encompassing OTDR and the like.
  • the composite optical measuring device includes an optical time-domain reflectometer (OTDR), a Raman spectrum method (Raman), a Brillouin scattering, a Rayleigh wave, a DAS ( At least one of Distributed Acoustic Sensing, Acoustic Emission, and Interferometry is used to detect a change in the target structure.
  • OTDR optical time-domain reflectometer
  • Raman Raman spectrum method
  • Brillouin scattering a Brillouin scattering
  • Rayleigh wave a Rayleigh wave
  • DAS At least one of Distributed Acoustic Sensing, Acoustic Emission, and Interferometry is used to detect a change in the target structure.
  • the temporal and spatial information and shape acquisition techniques are widely used to encompass data on gas dynamics using RF & Microwave-GPS, DGPS, RTK, Optical-Lidar, PIV, PIT, Interferometer, etc. Make a clear statement of the term.
  • the IMU inertial measurement unit
  • the IMU is previously described as a broad term encompassing a device for measuring acceleration and rotational motion such as a gyro and a grating.
  • the gyro is an instrument used to measure the direction of rotation in the inertial space of an axis-symmetric high-speed rotating body or the rotational angular velocity with respect to the inertial space.It is used to measure the direction and equilibrium of an aircraft, a ship, and a missile. Ensure the direction and equilibrium of aircraft and vessels in night operation are constant.
  • time and space information and shape acquisition techniques and IMUs are linked to the six degrees of freedom movement, reaction posture, position measurement, and database of the marine structure to monitor EEOI / EEDI / DMS / DPS of AI Perform posture control using the control system.
  • the term mathematical models (Mathmatical models) used in the present invention is a finite element method (FEM), gas structure interlocking analysis, finite difference method, finite volume method, IFEM (Inverse Finite Element Method) This is a broad term covering the interpretation program.
  • the finite element method (FEM) is based on the principle of energy in relation to each region by dividing the structure as a continuum into finite elements of 1-dimensional rods, 2-dimensional triangles or squares, and 3-dimensional solids (tetrahedron, hexahedron). It is a numerical calculation method that calculates based on an approximate solution.
  • the situation recognition middleware when the agent converts the situation information input from the sensor, such as USN sensor to the middleware-only packet and transmits it to the situation recognition middleware, the middleware receives it and processes it in each module classified by the function, and processes the result. It collects all kinds of sensor information or controls all equipment through an agent that converts program status information that can be monitored and controlled by transmitting to a user program into a packet for middleware.
  • Middleware is modularized by each function (notification, processing, storage, log, control, IO, external application), and the interoperability between modules uses middleware messages defined in XML to ensure independence between modules to modify and add additional functions. It is known in advance that it is a broad term covering the back.
  • the web-based situational awareness monitoring program is a program for monitoring contextual information using contextual awareness middleware.
  • the web-based situational awareness monitoring program can be used in a system in which the flash operates normally.
  • Real-time monitoring graph display, chart expression
  • 10-minute average inquiry historical data inquiry per period, sensor
  • threshold setting after sensor setting warning when threshold is exceeded
  • external program call for some sensors and result monitoring program It is known in advance that it is a broad term.
  • the present invention integrates electrical or optical measuring instruments to measure the load, strain, deformation, displacement, fatigue, crack, vibration or frequency of the marine structure.
  • the force exerted by the flow of gas on the hull is due to the velocity and direction in three dimensions over time, and the responses of the x, y, z axes and the incident angles of the x, y, z axes are different.
  • the first step of storing in the database the second and second steps of measuring and storing the internal and external forces in the database by using the time-of-flight method in the actual navigation of the marine structure Response of offshore structures by comparing the measured data of internal and external forces with the data of internal and external forces accumulated in the lookup table of the first stage
  • a third step of predicting data for the marine structure and a fourth step of controlling the attitude or navigation path of the marine structure in real time using the data on the predicted response of the marine structure.
  • Fuel saving and safe operation methods are provided through predictive monitoring and predictive control of external force, hull stress, six degree of freedom motion and position.
  • Linear tests in water tanks or wind tunnels measure hull resistance due to changes in draft and trim, and consider the effects of six degrees of freedom motion to determine the aerodynamic energy to be applied to ships in the future, including radar, pressure sensors, and strain sensors. Measure with an accelerometer. In this case, the direction and velocity of the gas for each altitude are measured according to space and time.
  • the automatic control in conjunction with the numerical arithmetic model and the actual measurement data.
  • the response of the marine structure is predicted and compared with the actual measured data. It is characterized by developing a gas dynamic response model, through which attitude control or navigation routes are determined.
  • the response of the marine structure predicted in the third step and the data of the response of the marine structure measured in step 3-1 and step 3-1 to measure the actual response of the offshore structure In case of inconsistency, the data on the response of the offshore structure in step 3-1 is corrected or the data on the response of the offshore structure in the lookup table generated in step 1 is reflected or the revised value of this data is reflected. It may further include steps 3-2 to modify / supplement the numerical model (CFD & / or FEM).
  • modification of the data on the response of the marine structure may be made by a finite element method (FEA) or an inverse finite element method (iFEM) based simulation.
  • FEA finite element method
  • iFEM inverse finite element method
  • the data measured by the measuring instrument maximizes the input condition of computational fluid dynamics (CFD), and analyzes the behavior of the offshore structure, the six degree of freedom motion, and the correlation of various physical quantities.
  • CFD computational fluid dynamics
  • Algorithms and simulations are built by interlocking the results of the arithmetic and vertebral models in the situational awareness middleware with actual measurement data.
  • the artificial intelligence monitoring and predictive control system is implemented by constructing a web-based system through the context awareness middleware and web based context awareness monitoring program.
  • the measuring device in the second step, internal and external forces by a gas are measured through a measuring device provided in the marine bracket, and the measuring device may be an electric sensor or an optical sensor.
  • the measuring device measures wind direction, wind speed, air pressure, temperature, humidity, and dust for each altitude.
  • the second step using the IMU actually measures the internal and external forces of the gas flow on the offshore structure.
  • reaction of the offshore structure in the second step when the offshore structure is a vessel may include at least one or more of the traveling direction, the front and rear tilt, draft or trim of the vessel.
  • reaction of the offshore structure in the second step, when the offshore structure is a temporary fixed structure may include at least one or more of the moving direction of the structure, front and rear tilt, draft.
  • the second step it is possible to measure the data including the natural frequency, harmonic frequency and gas characteristics of the offshore structure by the flow of gas.
  • the database in which the lookup table is stored in the first step may be a navigation recorder (VDR) provided in an offshore structure.
  • VDR navigation recorder
  • electric or optical sensors can be attached to mooring lines, support for eco-friendly fuel-saving sails, and sail lines to monitor changes in gas dynamics by coupled energy. .
  • the data stored in the database may be used as reference data to implement real-time situation recognition, situation representation of past records, and situation prediction for the number of cases.
  • the stored data may be used to perform a structural diagnosis and a task evaluation function through a virtual simulation.
  • the lookup table is recorded as hourly time series data, and compared with the time series data accumulated up to the previous year.
  • the lookup table can be modified by using. This can reduce the error automatically.
  • the fourth step by using at least one of the rudder (ruster), thruster (thruster), propeller, sail, kite or balloon can control the attitude or the navigation path of the marine structure in real time.
  • it controls the rudder to minimize the 6 degree of freedom movement
  • it controls the direction of the rudder to compensate for the force caused by the aerodynamics so that it can be operated in the optimized path.
  • the fourth step is the sum of the propulsion force and the internal and external forces, according to the data on the expected response of the marine structure, when the marine structure is a ship
  • the direction of the rudder and the RPMs of the thrusters and propellers can be controlled so that this is the desired direction of travel.
  • the moving distance to the target point is shortened when the rudder is controlled, rather than the rudder provided on the vessel with respect to internal and external forces applied to the vessel by gas dynamics. Can be.
  • the thrust with the internal and external forces can be controlled to maintain the current position to the minimum.
  • the marine structure includes a helideck
  • the fourth step includes DP (Dynamic Positioning) and DM (to maintain the equilibrium of the helix deck or to mitigate impact during takeoff and landing of the helicopter).
  • Dynamic motion may be used to control the attitude of the offshore structure, or change the center of gravity of the offshore structure by adjusting the angle of six degrees of freedom, and store the equilibrium state information of the helidec in the database.
  • the equilibrium state information of the helidec according to controlling the attitude of the offshore structure is stored in the database, the database transmits the equilibrium state information of the helidec to an external rescue information server through a communication unit, the rescue The information server may provide the helicopter with the position information of the marine structure having the equilibrium state information of the helidec from which the helicopter can take off and land among the plurality of marine structures.
  • the rescue The information server may provide the helicopter with the position information of the marine structure having the equilibrium state information of the helidec from which the helicopter can take off and land among the plurality of marine structures.
  • trim tilt
  • Equilibrium can be maintained or shocks can be alleviated.
  • the impact of the marine structure or the helicopter structure and the support structure of the helicopter is alleviated.
  • the second step at least one of wind direction, wind speed, air temperature, humidity, air pressure, solar radiation, inorganic ion, carbon dioxide, dust, radioactivity or ozone from the marine structure is measured by a measuring instrument and is measured in the database. Further includes steps 2-1 of storing
  • the measuring device is preferably at least one of anemometer, wind vane, hygrometer, thermometer, barometer, solar meter, atmospheric gassol automatic collector, CO2flux measuring equipment, atmospheric dust collector, air sampler or ozone analyzer.
  • the IMU time and spatial information and shape acquisition techniques, and radar capable of detecting X-band / S-band, it not only prevents collision with dangerous goods, but also predicts wind direction, wind speed, air pressure, and temperature. Measure more than 6 degrees of freedom of movement of the offshore structure as well as hogging, sagging and torsion, and measure the moving distance and coordinates of the offshore structure using the time and spatial information acquisition technique. Minimize fatigue of offshore structures by interlocking satellite internal and external force data with radar and IMU data.
  • the polarizer collection of the wave radar is not limited to 32, and in order to perform real-time dynamic image processing, a real-time dynamic image processing is performed by deleting a first or oldest polar image while receiving a new polar image.
  • a real-time dynamic image processing is performed by deleting a first or oldest polar image while receiving a new polar image.
  • collision prevention with dangerous goods, wind speed, wind direction, air pressure, and temperature can be predicted in real time.
  • it utilizes existing X-band or S-band anti-collision radar by utilizing RF 1x2 splitter or RF amplifier.
  • the effects of the six degrees of freedom motion on the wave data are compensated for, and a time of flight method and an image overlay method are used.
  • the marine structure includes a ballast tank and may include a sloshing suppression unit provided on each side of the ballast tank in order to reduce the sloshing phenomenon in the ballast tank.
  • the sloshing suppressing portion suppresses the sloshing phenomenon by narrowing the open area of the cross section in one horizontal cross section of the ballast tank.
  • the ballast water loaded in the ballast tank is moved to the opposite side of the inclined direction.
  • the attitude of the marine structure can be controlled.
  • the ballast tank the ballast tank is provided with a partition wall for dividing the compartment inside the ballast tank, the partition wall is provided with an opening and closing portion for moving the ballast water to other compartments, the interior of the opening and closing portion
  • the pump may be installed to control the moving speed and the moving direction of the ballast number.
  • the ballast tank and a water gauge may be connected to monitor the water level of the ballast tank, and active control may be performed through feed back and / or feed forward.
  • the measurement data of the internal and external force in step 2 is transmitted to an external weather information server, and the weather information server compares the weather information received from the satellite with the measurement data of the internal and external force, and corrects the error. Can be stored.
  • the weather information correction data may be provided to the external user terminal.
  • the response result values resulting from the virtual simulation are recorded in real time.
  • the maintenance data may be obtained through simulation.
  • the maintenance data may be output including position information, maintenance cost information, maintenance time information, remaining life information, etc. for each in the order of importance of the individual structures provided in the offshore structure.
  • the marine structure control information is generated as a simulator by FSI program (Fluid Structure Interaction), and the simulator of the marine structure obtained in the step 3-1 by the situation recognition middleware
  • the method may further include generating an algorithm for automatically controlling the marine structure by interworking with data about an actual reaction in real time.
  • a three-dimensional numerical analysis program using finite element analysis (FEM) and computational fluid dynamics (CFD) is performed. Create maintenance information by interlocking with the situation analysis module that stores data on virtual situation such as gas diffusion, fire or blasting and countermeasure according to the virtual situation
  • the data on the reaction of the marine structure may include at least one of strain, deformation, crack, vibration, frequency, corrosion, erosion.
  • the frequency includes a natural frequency and a harmonic frequency, and is used as data for minimizing fatigue and extending life by avoiding a frequency applied to the marine structure in conjunction with a structural analysis method.
  • the maintenance data of the fourth step may be obtained by being distinguished according to a predetermined importance of individual structures provided in the marine structure.
  • priority is given to the priority of minimizing fatigue for individual structures provided in the marine structure, and urgent, urgent, and prioritized so that the efficiency of EEOI / EEDI / DMS / DPS is appropriately large. By ranking Can operate.
  • the maintenance data may include at least one of location information requiring maintenance, maintenance cost information, maintenance required time information, or remaining life information for each structure.
  • the data on the reaction of the offshore structure by slamming and the reaction of the storage tank including the ballast tank by sloshing are interlocked with mathematical models to obtain an optimization & artificial intelligence algorithm. It is stored in a navigation recorder (VDR) or a separate server in the form of a lookup table to control the attitude of offshore structures to minimize damage.
  • VDR navigation recorder
  • the stored data is used as reference data for situation recognition necessary for real-time situation recognition, situation reproduction of past records, and situation prediction for the number of cases.
  • the structured diagnosis and work evaluation function can be performed through the virtual simulation using the stored data.
  • the optimized prediction simulator is implemented by continuously reflecting the actual measurement data in the algorithm or the simulator and modifying the lookup table.
  • Automation using automated learning techniques can be implemented by reflecting the above algorithms or simulators on offshore structures including Risers (SCR, TTR, Tendon) / ROV / Drill rig.
  • a fuel saving and safe operation method through predicted monitoring and control of hydrodynamic environment internal and external forces, hull stress, six degree of freedom motion, and operation position for a real-time offshore structure according to an embodiment of the present invention
  • a linear test in a water tank or a wind tunnel data about internal and external forces of the flow of the external fluid of the marine structure to the marine structure and data about the reaction of the marine structure according to the internal and external forces are accumulated to generate a lookup table, and the lookup table is a database.
  • Fuel saving and safe operation methods are provided through predictive monitoring and predictive control of external forces, hull stress, six degree of freedom motion and operating position.
  • Linear tests in water tanks or wind tunnels measure hull resistance due to changes in draft and trim, and consider hydrodynamic energy to be applied to the ship in the future, taking into account the effects of six-degree-of-freedom motions, including pressure sensors, strain sensors, and accelerometers. It measures using etc. In this case, the direction and velocity of the currents and tidal currents are measured according to space and time.
  • the automatic control in conjunction with the numerical arithmetic model and the actual measurement data.
  • the lookup table is optimized through modification Develop a hydrodynamic response model and use it to determine attitude control or navigational routes.
  • the method further includes steps 3-2 of modifying data on the response of the marine structure in the look-up table generated in the first step as data on the response of the marine structure in step 3-1. can do.
  • the correction of the data on the response of the marine structure can be made by a finite element method (FEA) based simulation.
  • FEA finite element method
  • the data measured by the measuring instrument maximizes the input condition of the computational fluid dynamics (CFD), and analyzes the behavior of the offshore structure, the six degree of freedom motion, and the correlation of various physical quantities.
  • CFD computational fluid dynamics
  • Algorithms and simulations are built by interlocking the results of the arithmetic and vertebral models in the situational awareness middleware with actual measurement data.
  • the artificial intelligence monitoring and predictive control system is implemented by constructing a web-based system through the context awareness middleware and web based context awareness monitoring program.
  • the second step, the second step, while measuring the internal and external force by the fluid through a measuring device provided on the side of the marine bracket the measuring device may be made of an electrical sensor or an optical sensor.
  • the second step using the IMU actually measures the internal and external forces of the flow of the fluid to the marine structure.
  • reaction of the offshore structure in the second step when the offshore structure is a vessel may include at least one or more of the traveling direction, the front and rear tilt, draft or trim of the vessel.
  • reaction of the offshore structure in the second step, when the offshore structure is a temporary fixed structure may include at least one or more of the operation direction of the structure, front and rear tilt, draft.
  • the second step it is possible to measure the direction and speed according to the space and time of the tidal current and the current for each depth.
  • the second step it is possible to measure the data including the natural frequency, harmonic frequency and fluid characteristics of the offshore structure by the flow of the fluid.
  • the database in which the lookup table is stored in the first step may be a navigation recorder (VDR) provided in an offshore structure.
  • VDR navigation recorder
  • electric or optical sensors can be attached to mooring lines, support for eco-friendly fuel-saving sails, and sail lines to monitor changes in fluid dynamics by coupled energy. .
  • the data stored in the database may be used as reference data to implement real-time situation recognition, situation representation of past records, and situation prediction for the number of cases.
  • the stored data may be used to perform a structural diagnosis and a task evaluation function through a virtual simulation.
  • the lookup table is recorded as hourly time series data, and compared with the time series data accumulated up to the previous year.
  • the lookup table can be modified by using. This can reduce the error automatically.
  • the fourth step by using at least one of a rudder (ruster), thruster (thruster), propulsion propeller or sail can control the attitude or the navigation path of the marine structure in real time.
  • a rudder tilter
  • thruster thruster
  • propulsion propeller or sail can control the attitude or the navigation path of the marine structure in real time.
  • it controls the rudder to minimize the 6 degree of freedom movement
  • the direction of the rudder in order to compensate for the force caused by the hydrodynamics so that it can be operated in the optimized path.
  • the fourth step if the offshore structure is a ship, according to the data on the predicted response of the offshore structure, within the above- It is possible to control the direction of the rudder and the RPMs of the thrusters and propellers so that the force with the external force can be the desired direction of travel.
  • the moving distance to the target point is shortened when the rudder is controlled than when the rudder provided in the vessel is not controlled with respect to internal and external forces applied to the vessel by hydrodynamics. Can be.
  • the thrust with the internal and external forces can be controlled to maintain the current position to the minimum.
  • the marine structure but having a helix (helideck)
  • the fourth step through the DP (Dynamic Positioning) and DM (Dynamic Motion) to maintain the balance of the helix
  • DP Dynamic Positioning
  • DM Dynamic Motion
  • the equilibrium state information of the helidec according to the attitude control of the offshore structure is stored in the database
  • the database transmits the equilibrium state information of the helidec to an external rescue information server through a communication unit
  • the rescue The information server may provide the helicopter with the position information of the marine structure having the equilibrium state information of the heli-deck to which the helicopter can take off and land among the plurality of marine structures.
  • the data on the internal and external forces of the fluid flow on the marine structure are measured by the pressure sensor installed on the side of the marine structure, and the data on the currents and tidal current vectors. Can be.
  • the pressure sensor is provided with a plurality, it may be installed at a predetermined interval on the side of the marine structure.
  • the monitoring of the waves acting on the marine structure is installed on the side of the three-dimensional pressure sensor module to analyze the measured data to extract the vector of the currents and currents, the wave at the installation position of the sensor with the largest value I can see that it is coming. Through this, it is possible to infer the speed of the wave by calculating the strain value due to the wave as well as the direction of the wave over space and time.
  • the second step is a step 2-1 for measuring at least one or more of the distance, the wave, the period of the wave, the speed of the wave or the direction of the wave from the marine structure by the meteorological measuring equipment and store in the database
  • the meteorological measurement device may be made of at least one of a wave radar, a directional waverider, a sea level monitor, an ultrasonic tide meter, a wind vane or an ultrasonic wave height meter.
  • the pressure sensor is provided with a plurality, may be installed with a height difference on the side of the marine structure.
  • the pressure sensor By analyzing the presence or absence of data measurement from the pressure sensor, it is possible to obtain the digging data through the data from the pressure sensor located at the highest position.
  • the period of the wave may be calculated by measuring the period of the measurement data.
  • the second step is a wave radar 310 (wave radar) (wave radar) far from the marine structure, wave, wave period, wave of
  • the method may further include a step 2-1 of measuring at least one of the velocity or the direction of the wave and storing it in the database.
  • the wave radar 310 it is possible to calculate the hydrodynamics that will extend to the marine structure by measuring the wave, wave height, wave period, wave speed and direction of the wave of several hundred meters.
  • the polarizer collection of the wave radar is not limited to 32, and in order to perform real-time dynamic image processing, a real-time dynamic image processing is performed by deleting a first or oldest polar image while receiving a new polar image. Through this, it is possible to predict the movement of the wave including the collision with the dangerous goods, wave and wave in real time.
  • it utilizes existing X-band or S-band anti-collision radar by utilizing RF 1x2 splitter or RF amplifier.
  • the effects of the six degrees of freedom motion on the wave data are compensated for, and a time of flight method and an image overlay method are used.
  • the marine structure is provided with a ballast tank, in order to reduce the sloshing phenomenon inside the ballast tank, provided on each side of the ballast tank It may include a sloshing suppressor.
  • the sloshing suppressing portion suppresses the sloshing phenomenon by narrowing the open area of the cross section in one horizontal cross section of the ballast tank.
  • the ballast water loaded in the ballast tank is moved to the opposite side of the inclined direction.
  • the attitude of the marine structure can be controlled.
  • the ballast tank, the ballast tank has a partition for dividing the partition inside the ballast tank, the partition is provided with an opening and closing portion for moving the ballast water to the other compartment, the inside of the opening and closing portion
  • the pump may be installed to control the moving speed and the moving direction of the ballast number.
  • the ballast tank and a water gauge may be connected to monitor the water level of the ballast tank, and active control may be performed through feed back and / or feed forward.
  • the measurement data of the internal and external force in step 2 is transmitted to an external weather information server, and the weather information server compares the weather information received from the satellite with the measurement data of the internal and external force, and corrects the error. Can be stored.
  • the weather information correction data may be provided to the external user terminal.
  • the maintenance data may be obtained through simulation.
  • the maintenance data may be output including position information, maintenance cost information, maintenance time information, remaining life information, etc. for each in the order of importance of the individual structures provided in the offshore structure.
  • the data on the reaction of the marine structure may include at least one of strain, deformation, crack, vibration, frequency, corrosion, erosion.
  • the frequency includes a natural frequency and a harmonic frequency, and is used as data for minimizing fatigue and extending life by avoiding a frequency applied to the marine structure in conjunction with a structural analysis method.
  • the maintenance data of the fourth step may be acquired separately according to a predetermined importance of the individual structure provided in the offshore structure.
  • priority is given to the priority of minimizing fatigue for individual structures provided in the offshore structure, and urgent, urgent, and prioritized so that the efficiency of EEOI / EEDI / DMS / DPS is appropriately large. It can be operated by ranking.
  • the maintenance data may include at least one of location information requiring maintenance, maintenance cost information, maintenance required time information, or remaining life information for each structure.
  • Load, strain, deformation, displacement, fatigue, micro cracks, vibrations, and the like of the floating mat assembly caused by sloshing by introducing an electrical or optical sensor at one or more points of the floating mat assembly. Measure the frequency. Electrical or optical sensors are also inserted between the walls of the fluid storage tank, so that the load, strain, deformation, displacement, micro crack and vibration due to the impact between the floating mat and the fluid storage tank wall due to the sloshing of the fluid. , Measure the frequency.
  • the floating mat unit is made of a structure or material that can be suspended in a liquid including LNG, and can be applied to an LNG tank or a ballast tank, and the size of the floating mat is determined in consideration of the maximum amount of material filled in the tank and sloshing. At the same time, the impact of sloshing the mat and tank is minimized.
  • Measurements of offshore structures and tanks are also important, but the response of offshore structures by slamming is not the same, so the load of the floating mat assembly generated by sloshing by introducing electrical or optical sensors Strain, strain, displacement, fatigue, micro crack, vibration, and frequency are measured and used as data to minimize the impact between the marine structure and the tank through safety diagnosis and control.
  • the data on the reaction of the offshore structure by slamming and the reaction of the storage tank including the ballast tank by sloshing are interlocked with mathematical models to obtain an optimization & artificial intelligence algorithm. It is stored in a navigation recorder (VDR) or a separate server in the form of a look-up table to minimize the damage by controlling the attitude of offshore structures.
  • VDR navigation recorder
  • the stored data is used as reference data for situation recognition necessary for real-time situation recognition, situation reproduction of past records, and situation prediction for the number of cases.
  • the structured diagnosis and work evaluation function can be performed through the virtual simulation using the stored data.
  • the optimized prediction simulator is implemented by continuously reflecting the actual measurement data in the algorithm or the simulator and modifying the lookup table.
  • Automation using automated learning techniques can be implemented by reflecting the above algorithms or simulators on offshore structures including Risers (SCR, TTR, Tendon) / ROV / Drill rig.
  • the control method through monitoring of hydrodynamic environment, hull stress, six degree of freedom motion and operating position for the real-time offshore structure according to an embodiment of the present invention using Radar, IMU, GPS measurement technique, X-band Radar In addition to collision avoidance, it measures wave and wave heights and predicts wave motion, measures not only six degrees of freedom motion but also hogging, sagging and torsion of offshore structures using at least one IMU.
  • Measurement of travel distances and coordinates of offshore structures Minimize fatigue of offshore structures by interfacing environmental external force data of satellites with data of Radar and IMU, and EEOI / EEDI / DP Boundary / DM Boundary / Risers (SCR, TTR, Tendon) / Lowering / It can be reflected in ROV / Drill Rig and replaced by algorithm and simulator of prediction procedure.
  • Radar is used to measure wave speed, wave, period, wave speed and direction, but Radar's polar image collection is not limited to 32, and it is possible to receive new Polar images for real-time dynamic image processing while simultaneously receiving the first or oldest You can delete Polar images for real-time dynamic image processing.
  • collision prevention, wave / wave height measurement, and wave motion prediction can be linked.
  • using the existing X-Band or S-Band anti-collision Radar using the RF 1x2 Splitter, RF amplifier or optical signal transmission and amplifier capabilities, it is possible to extract the wave, wave, period, and smell measurement results.
  • six degrees of freedom Motion Compensated X / S-Band Wave Radar, Wave Height Measuring Sensor, Doppler, Time of Flight and Image Overlay can be used.
  • Time and Spatial Information Acquisition Tool e.g. RF & Microwave-GPS, DGPS, RTK, Optical-Lidar, PIV, PIT, Interferometer, etc., Underwater, Sound Wave, Ultrasound, Optical / Lidar, etc.
  • Smart IMU Electro / Photoelectric Gyro + Electric Acceleration of Light Grating, MEM, etc.
  • Drill Rig / Riser monitoring is performed to set the most comfortable posture of the offshore structure and to predict it, but to perform the damping considering the six degrees of freedom required at the required time (e.g., motion-oriented motion damping at the joints, In consideration of the predicted motion, the hydraulic motor is controlled in advance to damp the six degrees of freedom required.
  • vibrations e.g., DAS
  • subsea structures e.g. Mooring Line, Risers, Umbilical Line structures
  • the external force e.g., vector of external force of tidal current and current
  • the situational middleware or similar software integration can be used as a basic tool that optimizes the measurement results of all situational awareness functions by integrating real-time Mathematical Models (eg CFD, FEA & / or FSI ).
  • Mathematical Models eg CFD, FEA & / or FSI .
  • the integrated measured situation-aware database can be stored or linked to VDR (Voyage Data Recorder) to provide Hydro-Dynamic & / or Aero-Dynamic Energy (e.g. wave direction and speed or vector of wind direction and wind speed and Eject the vector of the structure's response.
  • VDR Vehicle Data Recorder
  • Aero-Dynamic Energy e.g. wave direction and speed or vector of wind direction and wind speed and Eject the vector of the structure's response.
  • the prediction control is performed by using the Experienced Reference data.
  • the monitoring function and the predictive control system e.g., Utilize the resulted influence to 6 DoF Motion & Displacement for DPS, DMS, & EEOI
  • Save and record / EEDI Energy Efficiency Design Index
  • Strain sensors measure the deformation of bulkheads and monitor them by ultrasonic measurement or DAS excitation for global measurement.

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PCT/KR2013/004777 2012-05-12 2013-05-30 실시간 해양 구조물에 대한 기체역학적, 유체역학적 환경 내외력, 선체 응력, 6자유도 운동 및 위치를 예측 모니터링 및 예측 제어함을 통한 연료절감, 안전운용 및 유지보수정보 제공 시스템 및 방법 Ceased WO2013180496A2 (ko)

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EP23156944.3A EP4239283A3 (en) 2012-05-30 2013-05-30 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with
JP2015514905A JP6223436B2 (ja) 2012-05-30 2013-05-30 海洋構造物の物理的変化をモニタリングするシステム、海洋構造物の物理的変化をモニタリングする方法、及び、海洋構造物に対する物理的変化の実時間モニタリングを通した制御方法
CN201380040663.XA CN104508422B (zh) 2012-05-30 2013-05-30 监视海洋结构物的物理变化的系统及方法
EP13796337.7A EP2860489A4 (en) 2012-05-30 2013-05-30 SYSTEM AND METHOD FOR PROVIDING INFORMATION RELATED TO FUEL SAVING, SAFE OPERATION AND MAINTENANCE BY PREDICTIVE MONITORING AND PREDICTIVE CONTROL OF AERODYNAMIC AND HYDRODYNAMIC INTERNAL / EXTERNAL ENVIRONMENTAL ENGINES, HULL CAPACITIES, SIX-DEGREE FREEDOM MOVEMENT AND THE LOCATION OF A MARINE STRUCTURE
EP20176395.0A EP3722744A1 (en) 2012-05-30 2013-05-30 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with six degrees of freedom, and the location of marine structure
AU2013268170A AU2013268170B2 (en) 2012-05-30 2013-05-30 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with six degrees of freedom, and the location of marine structure
US14/555,928 US9580150B2 (en) 2012-05-30 2014-11-28 System and method for fuel savings and safe operation of marine structure
US15/407,849 US11034418B2 (en) 2012-05-30 2017-01-17 System and method for fuel savings and safe operation of marine structure
AU2017279830A AU2017279830B2 (en) 2012-05-30 2017-12-28 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with six degrees of freedom, and the location of marine structure
AU2020204051A AU2020204051B2 (en) 2012-05-30 2020-06-17 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with six degrees of freedom, and the location of marine structure
US17/315,289 US11976917B2 (en) 2012-05-12 2021-05-08 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with six degrees of freedom, and the location of marine structure
AU2022241564A AU2022241564B2 (en) 2012-05-30 2022-09-29 System and method for providing information on fuel savings, safe operation, and maintenance by real-time predictive monitoring and predictive controlling of aerodynamic and hydrodynamic environmental internal/external forces, hull stresses, motion with six degrees of freedom, and the location of marine structure

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KR10-2012-0057754 2012-05-12
KR20120057754 2012-05-30
KR10-2012-0057753 2012-05-30
KR10-2012-0057755 2012-05-30
KR20120057753 2012-05-30
KR20120057755 2012-05-30
KR20120129441 2012-11-15
KR10-2012-0129441 2012-11-15
KR1020120149411A KR20130135721A (ko) 2012-05-30 2012-12-20 항해 또는 계류 중인 선박의 유체역학적 환경 내-외력, 선체 응력, 6자유도운동 및 표류 위치를 실시간 모니터링 및 제어 함을 통한 선박의 연료절감 및 안전운항 방법
KR10-2012-0149411 2012-12-20
KR10-2012-0149412 2012-12-20
KR1020120149412A KR20130135024A (ko) 2012-05-30 2012-12-20 항해 또는 계류 중인 선박의 공기역학적 환경 내-외력, 선체 응력, 6자유도운동 및 표류 위치를 실시간 모니터링 및 제어 함을 통한 선박의 연료절감 및 안전운항 방법
KR10-2013-0061759 2013-05-30
KR10-2013-0061754 2013-05-30
KR1020130061759A KR101529378B1 (ko) 2012-05-30 2013-05-30 실시간 해양 구조물에 대한 유체역학적 환경 내외력, 선체 응력, 6자유도 운동 및 운용 위치를 예측 모니터링 및 제어함을 통한 연료절감, 안전운용 및 유지보수정보 제공 방법
KR1020130061477A KR101472827B1 (ko) 2012-05-30 2013-05-30 해양 구조물의 물리적 변화를 실시간 모니터링 및 제어하는 시스템 및 그 방법
KR1020130061754A KR101529377B1 (ko) 2012-05-30 2013-05-30 실시간 해양 구조물에 대한 기체역학적 환경 내외력, 선체 응력, 6자유도 운동 및 위치를 예측 모니터링 및 예측 제어함을 통한 연료절감, 안전운용 및 유지보수정보 제공 방법
KR10-2013-0061477 2013-05-30

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